Jar-rein socket



March 25, 1930. F. .1. HINDERLITER JAR REIN SOCKET Fi led Oct. 19-, 1927I l 1 1 I Ill n I I nn I Patented Mar. 25, 1930 v siren stares PATENTOFFICE JAB-BEEN SOCKET Application filed Gotooer 19, 1927.

My present invention relates in general to apparatus for removing brokenmechanism from wells, and more particularly to a device for removingbroken jar parts from a 5 well, which device I have termed a jar reinsocket.

In the drilling of wells, the jar employed inconnectio'n with the driling tool is very often broken oil in the hole in the well. This usuallyresults ina difficult fishing job, inasmuch as it is practicallyimpossible to get a square or fiat-bottomed socket over the broken bailsor reins of the jar part remaining in the well due to the fact that thereins are usually rough and lie to one side of the well or hole.

Now I propose to provide a fishing tool comprising a socket and a guidebowl adapted to embrace the broken reinsof the jar part remaining in thewell sufficiently tight to enable this jar part tobe removed or fishedfrom the well.

An object of the present invention is to provide an improved fishin tooladapted to be used to remove a broken jar from a Well being drilled.

Another object of my invention is to provide a jar rein socket includingmeans for gripping the reins and a guide tube adapted to align the reinswith the jar and adapted to keep the ends or reins of the broken jarfrom expanding during the pulling operation. 7

A further object of the present invention is to provide a jar reinsocket including a guide tube having an eccentric point adapted to slidewith facility between the casing wall and the broken reins even when thereins are lying over in the side of the casing, whereby the reins may bealigned with tacility with the gripping means of the socket.

Other objects and advantages of my invention will more -fully appearfrom the following detailed description taken in connection with theaccompanying drawing, which illustrates a single embodiment thereof andin which Figure 1 is a fragmentary vertical sectional view taken througha well casing showing my novel socket in a position ready to grip SerialNo. 227,197.

the reins of a broken jar, the socket and ar being shown partly insection;

Figure 2 is a sectional view similar to Figure 1 showing the socketdevice in engagement with the reins of the broken ar;

Figure 3 is an enlarged fragmentary sectional view of the socket of myinvention;

Figure 4 is an elevation of my novel socket showing the wedges or slipsin their uppermost position, the guide tube being shown in section;

Figure 5 is a cross-sectional view taken on substantially the line V-Vof Figure l looking upwardly; and

Figure 6 is an end view of the device taken on substantially the lineVT-VI of Figure l looking upwardly.

In the drawings:

Like reference characters designate similar parts throughout the severalviews.

The reference character 10 designates generally the body of my device,which is preferably made of cylindrical rod. The body 10 has formedintegral with it a tapered threaded portion 11 adapted to be threaded inthe lower end of a suitable tube or rod 12 used to lower the device intothe well casing 13. The body 10 includes a reduced portion 1-1 definingthe shoulder for receiving the upper end of a guide tube 15, which issuitably anchored to the body 10. The tube 15 is disposed concentricwith the reduced body portion 14. The lower end of the tube 15 is cut ona slant, as indicated at 16, so as to provide the tube with an eccentricpoint 17, the purpose of which will be more fully explained hereinafter.The body 10 is provided with a downwardly extending element 18 disposedin the guide tube 15. This element 18 comprises a relatively flat pieceof metal depending from and termed integral with the body. As best shownin Figures 5 and 6, the element 18 has oppositely disposed concavesurfaces 19. These concave surfaces, as will more fully appearhereinafter, are adapted to accommodate the reins 2020 of the broken jarpart 21 disposed in the lower part of the casing 18. The jar part 21comprises an element of a standard jar, such as is well known in thewell drilling art. The lower end of the element 18 is provided with achisel-like edge 22, which is best shown in Figures 3 and 4. This edge22 is adapted to engage in the crotch between the reins 20 of the part21. p

The member 18 has formed in it two pairs of wedge-shaped slots 23 and 24disposed near its lower end. The slots 24 are staggered relative to eachother, as is evident from Figure 3, whereas the slots 23 are disposeddiametrically opposite each other. Disposed in the slots 24 are slidableslips or wedges 25, and disposed in each of the slots 23 is a slidableslip 26. Each of these slips 25 and 26 is provided with atoothed surface27 (Figure 5), as is evident from the drawing. Each of the slots 24-24,as well as each of the slots 2323, is of a dovetail shape, as is clearlyshown in Figure 5. Each of the wedges is shaped to fit in the associatedslot and in reality comprises a dovetail tongue. The slips are slidablein their respective slots and are prevented from falling out of theslots by means of transverse pins 28 secured in the element 18. Each pin28 extends transversely across the lower end'oi" the associated slot, asis evident from Figure 3.

The operation of my novel fishingtool or socket is briefly as follows: i

The first thing that is done afterthe breaking of the jar is .to lowerthe socket of my invention into the well or casing. This socket may beconnected to any suitable string of pipe or rod through the means of thethreaded portion. 11 for the purpose of enabling thedevice to be loweredinto the well. Upon the point 17 of the guide tube 15 coming into thezone of the reins 20 of the broken jar 21, the tube will align the reinswith the element 18. Moreover, should the jar reins be in a tiltedposition, the point of the guide tube will force it back into a verticalposition. Thereafter the chisel end 22 of the element 18 forces its wayinto the space between the reins 20 and its downward motion is arerested by it striking the portion of the jar defining the crotch betweenthe tworeins. Of

course, it will be understood that during this downward movement of theelement 18, the 1 slips 25 are caused to ride upwardly in their Irespective slots.

N ow upon novel device being raised,

the slips will slide down thetapered slip slots or seats. and will bewedged betweenthe inner sides of the reins'and. the element 18..

The guide tube 15 willkeep the ends ofth-e reins of the broken jar'fromexpanding dirr- 7 ing the pulling or elevating operation.

I desireit understood that although I have illustrated and described indetail thepreferred form of my invention, the invention is not to bethus limited, but only so far as ed claims;

defined by the scope and spirit of the append- I claim as myinvention: 1. In combination, in a fishing tool of the class described,a body member, a down-- wardly extending element connected to said bodymember, said element having concave sides shaped to receive the reins ofa broken jar in a well, gripping means carried by said element forengaging said reins, whereby the broken jar may be elevated from thewell, and a guide tube disposed over said element and connected to saidmember adapted to fit over said reins and to align them with the concaveshank having its sides provided with channels to receive said reins, andwedge means 7 connected to said shank for engaging the reins when theyare in said channels to wedge the reins against the wall of said tubularportion.

3. In combination in a fishing tool for removing an element from a wellhaving spaced reins, a body, a shank connected to and dependmg from saidbody including a spear portion for spreading the reins apart, said 9shank having its sides provided with channels to receive said reins, andmeans connectedto said shank for wedgingly engaging said reins to enablethe element to be thereafter removed from the well'with said tool.

In testimony whereof, Ihave hereunto sub- 7 scribed my name at Tulsa,county of Tulsa, Oklahoma.

' FRANK J. HINDERLITER.

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